CN106090529A - A kind of leakage sealed fixture of telescope jiont for pipe and using method thereof - Google Patents
A kind of leakage sealed fixture of telescope jiont for pipe and using method thereof Download PDFInfo
- Publication number
- CN106090529A CN106090529A CN201610697690.XA CN201610697690A CN106090529A CN 106090529 A CN106090529 A CN 106090529A CN 201610697690 A CN201610697690 A CN 201610697690A CN 106090529 A CN106090529 A CN 106090529A
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- shaped portion
- cylindrical shaped
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- face
- fixture
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of leakage sealed fixture of telescope jiont for pipe, including being all butted into a pair chuck body of cylindrical shape, fixing end-plate, pair of sliding end-plate and a pair packing gland for a pair；Each described chuck body includes semi-cylindrical shaped portion A；Described semi-cylindrical shaped portion A, its one end cylinder end face connects described fixing end-plate, its affixed described packing gland of other end cylinder end face；Described sliding end shrouding is positioned at the inner side of described semi-cylindrical shaped portion A, and its outer wall is slidably matched with the inner surface of described semi-cylindrical shaped portion A；Described fixing end-plate, described sliding end shrouding and described packing gland three's internal diameter are connected outer diameter tube with expansion joint and match.The invention also discloses the using method of the leakage sealed fixture of a kind of telescope jiont for pipe.The present invention can be simple and practical, and construction operation and routine maintaining operations are easy, quick, it is to avoid the energy, the wasting of resources and beneficially environmental conservation.
Description
Technical field
The present invention relates to a kind of on-line pressure sealant fixture and using method, leakage sealed particularly to a kind of telescope jiont for pipe
Fixture and using method thereof.
Background technology
The various positions such as equipment in process units, pipeline, valve, when causing leakage because of certain reason, leaking medium band
Warm, with pressure and outside jet flow state.Leakage position: hole on flange, equipment, pipeline, weld defect, nipple,
Gland leakage etc..Leaking medium: water, water vapour, air, oxygen, nitrogen, coal gas, ammonia, liquefied gas, gasoline, diesel oil, kerosene,
Heavy oil, lubricating oil, acid, alkali, esters, alcohols, benzene class, various heat carrier, various Hydrocarbon, various chemical gas, liquid
Deng All Media leakage part can with this technology go eliminate.The closed cavity that leakage position is original can be utilized, or letting out
Set up a cavity closed on leakage position, for the external thrust of medium system pressure, will have plasticity, curable, and be resistant to
The sealant of leaking medium and temperature injects and is full of closing space, and blocking leakage hole and passage, sealant is at certain bar
Under part, solidify rapidly, leakage position is set up a fixing new sealing structure, eliminates the leakage of medium.Do not stop
Car on-line pressure sealant technology is the sophisticated equipment maintenance technique that middle nineteen seventies grows up, when setting of process units and enterprise
During the leakage of standby, pipeline various position, can not affect in the case of production carries out, band temperature, with pressure, rapid, peace not parking
Entirely, reliably stop a leak.
Repair process units fluid media (medium) by not parking on-line pressure sealant technology to leak, the agent injecting type Sealing Method that use more, real
Execute closure operation.This encapsulating method adaptive temperature from-180 DEG C～800 DEG C, each under the conditions of-0.1MPa～35MPa of pressure
Plant the leakage sealed construction of fluid media (medium).But construction procedure is complicated, including fixture mounting and adjusting orientation, injecting operation it is noted that
Fltting speed and the coordination of sealant cures time, carry out effect observation and after-teeming compress after completing injecting.One of them link
Controlling improper to affect closure quality, this not only jeopardizes operating personnel and special equipment safe operation, is also unfavorable for that resource saves
About and environmental conservation.
On-line pressure sealant fixture, has been mounted in outside leakage defect parts, contains leakage position and forms sealing cavity, it is provided that be strong
The hardware that degree and rigidity ensure, has been the indispensable ingredient of on-line pressure sealant construction, with injecting sealant, specific purpose tool and
Operating technology collectively constitutes on-line pressure sealant construction blocking technology.
The bigger fluid-transporting tubing of diameter dimension, for preventing telescopic moving from producing axial cohesiveness, need to arrange flexible adjustment
Joint.Flow path device telescope jiont for pipe generation dielectric leakage, owing to not having suitable encapsulating method, can not get effectively processing,
Not only cause energy resources to waste, even cause serious accident to cause unplanned parking.At present, local fixture method is generally used to answer
Anxious process, but due to the continuous telescopic moving of expansion joint, newly-established sealing structure is difficult to adapt to it and dynamically changes, sealing effectiveness
It is difficult to keep stable.
Summary of the invention
The present invention solves that technical problem present in known technology provides a kind of leakage sealed folder of telescope jiont for pipe
Tool and using method thereof.
The present invention solves that technical problem is adopted the technical scheme that present in known technology: a kind of pipeline extension connects
Leakage sealed fixture, including being all butted into a pair chuck body of cylindrical shape, fixing end-plate, pair of sliding end-plate for a pair
With a pair packing gland；Each described chuck body includes semi-cylindrical shaped portion A；Described semi-cylindrical shaped portion A, its one end cylinder end face
Affixed described fixing end-plate, its other end cylinder end face arranges described packing gland；Described sliding end shrouding is positioned at described half
The inner side of cylindrical part A, its outer wall is slidably matched with the inner surface of described semi-cylindrical shaped portion A；Described fixing end-plate, described cunning
Moved end shrouding and described packing gland three's internal diameter are connected outer diameter tube with expansion joint and match.
Further, the interface of described semi-cylindrical shaped portion A radially opposite sides is provided with sealed groove vertically, described solid
Fixed end shrouding is equipped with the annular seal grooves connected with described sealed groove, described sealing with the inner circumferential of described sliding end shrouding
Groove and described annular seal grooves are embedded in sealant.
Further, described semi-cylindrical shaped portion A, at the cylinder between described sliding end shrouding and described packing gland
Radially injecting hole is had on wall.
Further, the radially opposite sides at described semi-cylindrical shaped portion A are provided with fixture otic placode, and described fixture otic placode is provided with fixture
Otic placode docking fastening bolt holes.
Further, each described packing gland includes that semi-cylindrical shaped portion B, one end of described semi-cylindrical shaped portion B are provided with
The shaft shoulder, described shaft shoulder end face is provided with fastening bolt holes, passes through described fastening bolt holes by bolt and is screwed into described semi-cylindrical shaped
In the end face fastening bolt holes being provided with vertically on the cylinder end face of portion A, make the cylinder of described shaft shoulder end face and described semi-cylindrical shaped portion A
End face secure fit, the other end of described gland semi-cylindrical shaped portion B embeds in described semi-cylindrical shaped portion A.
Further, the radially opposite sides at described semi-cylindrical shaped portion B are provided with gland otic placode, and described gland otic placode is provided with gland
Otic placode docking fastening bolt holes.
Present invention also offers the using method of the leakage sealed fixture of a kind of telescope jiont for pipe, comprise the steps:
Step one: by the described chuck body of a pair described fixing end-plate the most affixed, be sleeved on the expansion joint of leakage
On, make described chuck body move axially and cover leakage point, the inner side end of described fixing end-plate and the telescoping connection of leakage
Cephalic par leaves the gap of flexible allowance；
Step 2: in sliding end shrouding is placed in described chuck body described in a pair, and make the interior of described sliding end shrouding
Being placed in week outside the weld seam that expansion joint is connected with pipeline, fastening makes the interface of described chuck body fit tightly；
Step 3: sealant is filled extremely described sliding end shrouding, the inwall of described chuck body and pipeline outer wall and surrounds
Ring packing intracavity；
Step 4: packing gland docking described in a pair being sleeved on pipeline, fastening makes the right of described packing gland
Junction fits tightly, then bolt passes through described fastening bolt holes and is screwed on the cylinder end face of described semi-cylindrical shaped portion A vertically
In the end face fastening bolt holes being provided with, and after fastening, it is compacted filler so that it is reach operating unit sealing load.
Further, in described step 3, first sealant is strengthened drawing-off, is twisted into bar shaped and embeds described ring packing again
Intracavity.
The present invention has the advantage that with good effect:
1. clamp structure is simple and practical, and construction operation and routine maintaining operations are easy, quick.
The most both ensured that pipeline extension moved freely, it is to avoid in-service pipeline promotes axial stress, it is ensured that system is run safely, surely
Fixed length periodic duty.
3. Special seal agent consumption is little, reduces engineering and regular maintenance expense, and is prevented effectively from the energy, the wasting of resources
Beneficially environmental conservation.
4. encapsulant through strengthening drawing-off, stranded, filling and fastening and can combine with injecting, can strengthen sealing effectiveness.
5. pipeline longtime running weares and teares through telescopic moving encapsulant, occurs that stress relaxation occurs to leak again, by fastening
Packing gland or injecting after-teeming, safeguard system longtime running.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the B-B sectional view of Fig. 1.
In figure: 1, fixing end-plate；2, chuck body；3, fixture otic placode；4, fixture otic placode docking fastening bolt holes；5, sliding
Moved end shrouding；6, packing gland；7, end face fastening bolt holes；8, ring packing chamber；9, gland otic placode.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate accompanying drawing
Describe in detail as follows:
Referring to Fig. 1～Fig. 3, a kind of leakage sealed fixture of telescope jiont for pipe, including being all butted into cylindric a pair
Chuck body 2, fix end-plate 1, pair of sliding end-plate 5 and a pair packing gland 6 for a pair；Each described chuck body 2
Including semi-cylindrical shaped portion A；Described semi-cylindrical shaped portion A, the affixed described fixing end-plate 1 of its one end cylinder end face, its other end cylinder end
Face is arranged and affixed described packing gland 6；Described sliding end shrouding 5 is positioned at the inner side of described semi-cylindrical shaped portion A, described slip
The end-plate 5 i.e. outer wall of outer round surface is slidably matched with the inner surface of described semi-cylindrical shaped portion A；Described fixing end-plate 1, described cunning
Moved end shrouding 5 and described packing gland 6 three's internal diameter are connected outer diameter tube with expansion joint and match.After the present invention installs,
The telescope jiont for pipe of leakage is between described fixing end-plate 1 and described sliding end shrouding 5, at described sliding end shrouding 5
And between described packing gland 6, form ring packing chamber 8, constitute stuffing-box, sealant or benefit can be inserted in ring packing chamber 8
Fill into sealant.The monomer of fixing end-plate 1, sliding end shrouding 5 and packing gland 6 is semi-circular, Cheng Yuan after docking
Tubular, encloses leaking position of pipeline, and carries out sealing disposal.
Further, the interface of described semi-cylindrical shaped portion A radially opposite sides can be provided with sealed groove, vertically described
Fixing end-plate 1 all can be provided with the annular seal grooves connected with described sealed groove, institute with the inner circumferential of described sliding end shrouding 5
State sealed groove and described annular seal grooves is embedded in sealant.
Further, described semi-cylindrical shaped portion A, can be between described sliding end shrouding 5 and described packing gland 6
Barrel on have radially injecting hole.
Further, the radially opposite sides at described semi-cylindrical shaped portion A can be provided with fixture otic placode 3, and described fixture otic placode 3 is provided with
Fixture otic placode docking fastening bolt holes 4, can dock fastening bolt holes by bolt through described fixture otic placode 3, fasten a pair
The fixture otic placode 3 of described chuck body 2, so that the interface of described chuck body 2 fits tightly, it would however also be possible to employ other modes
And structure, so that the interface of described chuck body 2 fits tightly, such as set annular groove, Yi Jisuo in described chuck body 2 periphery
The devices such as the interface stating chuck body 2 sets male-female engagement etc., is embedded in the clamp devices such as clip at annular groove, fastening clamp make institute
The interface stating chuck body 2 fits tightly.And fasten through described fixture otic placode 3 bolt hole with bolt；
Further, each described packing gland 6 can include semi-cylindrical shaped portion B, and one end of described semi-cylindrical shaped portion B can
Being provided with the shaft shoulder, described shaft shoulder end face can be provided with fastening bolt holes, passes through described fastening bolt holes by bolt and is screwed into described half
In the end face fastening bolt holes 7 being provided with vertically on the cylinder end face of cylindrical part A, make described shaft shoulder end face and described semi-cylindrical shaped
The cylinder end face secure fit of portion A, the other end of described gland semi-cylindrical shaped portion B embeds in described semi-cylindrical shaped portion A.The described shaft shoulder
End face screw passes through that bolt is screwed into can be affixed with the cylinder end face screw of described semi-cylindrical shaped portion A, another of described semi-cylindrical shaped portion B
End can embed in described semi-cylindrical shaped portion A.
Further, the radially opposite sides at described semi-cylindrical shaped portion B can be provided with gland otic placode 9, and described gland otic placode 9 is provided with
Gland otic placode 9 docks fastening bolt holes.Fastening bolt holes can be docked by bolt through described gland otic placode 9, fasten a pair
The gland otic placode 9 of described packing gland 6, so that the interface of described packing gland 6 fits tightly, it would however also be possible to employ other
Mode and structure, so that the interface of described packing gland 6 fits tightly, such as set ring in described packing gland 6 periphery
Groove, and the interface of described packing gland 6 sets male-female engagement etc., is embedded in the clamp devices such as clip, fastener at annular groove
The devices such as hoop make the interface of described packing gland 6 fit tightly.
Further, described shaft shoulder end face can pass through axial bolts or its other party with the cylinder end face of described semi-cylindrical shaped portion A
Formula is affixed.End face fastening bolt holes 7 can be respectively set, it is possible in institute at the cylinder end face of described shaft shoulder end face Yu described semi-cylindrical shaped portion A
Stating shaft shoulder end face and set through hole, the cylinder end face at described semi-cylindrical shaped portion A sets end face fastening bolt holes 7, make described shaft shoulder end face with
The cylinder end face end face compact siro spinning technology of described semi-cylindrical shaped portion A.
Present invention also offers the embodiment of the using method of the leakage sealed fixture of a kind of telescope jiont for pipe, including as follows
Step:
Step one: by the described chuck body 2 of a pair described fixing end-plate 1 the most affixed, be sleeved on the telescoping connection of leakage
On head, making described chuck body 2 move axially and cover leakage point, the inner side end of described fixing end-plate 1 is stretched with leakage
Reducer coupling cephalic par leaves the gap of flexible allowance；
Step 2: sliding end shrouding 5 described in a pair is placed in described chuck body 2, and make described sliding end shrouding 5
Inner circumferential is placed in outside the weld seam that expansion joint is connected with pipeline, and fastening makes the interface of described chuck body 2 fit tightly；
Step 3: sealant is embedded described sliding end shrouding 5, the inwall of described chuck body 2 and pipeline outer wall and surrounds
Ring packing chamber 8 in；
Step 4: packing gland described in a pair 6 docking being sleeved on pipeline, fastening makes described packing gland 6
Interface fits tightly, then bolt passes through described fastening bolt holes and is screwed on the cylinder end face of described semi-cylindrical shaped portion A along axle
In the end face fastening bolt holes 7 being provided with, and after fastening, it is compacted filler so that it is reach operating unit sealing load.
Further, in described step 3, first sealant can be strengthened drawing-off, be twisted into bar shaped and embed described annular again and fill out
In material chamber 8.
The operation principle of the present invention:
The present invention is that fixture is fixed the pipeline close contact that end is connected with the expansion joint such as expansion joint, chuck body containing
All standing expansion joint, the gap of flexible allowance is left in the described inner side end of fixing end-plate 1 and the expansion joint end of leakage；
Ensure the flexible freedom of expansion joint, when the present invention uses, described sliding end shrouding 5, the inwall of described chuck body 2 and pipeline
The ring packing chamber 8 that outer wall surrounds, ring packing chamber becomes stuffing-box and plays the effect sealing sliding end.Pipeline longtime running warp
Telescopic moving encapsulant weares and teares, and occurs that stress relaxation occurs to leak again, by fastening packing gland or injecting after-teeming, safeguards
System longtime running.
Embodiment described above is merely to illustrate technological thought and the feature of the present invention, in its object is to make this area
Skilled artisan will appreciate that present disclosure and implement according to this, it is impossible to only limit the patent model of the present invention with the present embodiment
Enclosing, what the most all disclosed spirit was made changes on an equal basis or modifies, and still falls in the scope of the claims of the present invention.
Claims (8)
1. the leakage sealed fixture of telescope jiont for pipe, it is characterised in that include all being butted into a pair fixture of cylindrical shape originally
Body, fix end-plate, pair of sliding end-plate and a pair packing gland for a pair；Each described chuck body includes semi-cylindrical shaped
Portion A；Described semi-cylindrical shaped portion A, the affixed described fixing end-plate of its one end cylinder end face, its other end cylinder end face arranges described filler
Letter gland；Described sliding end shrouding is positioned at the interior table of the inner side of described semi-cylindrical shaped portion A, its outer wall and described semi-cylindrical shaped portion A
Face is slidably matched；Described fixing end-plate, described sliding end shrouding and described packing gland three's internal diameter are with expansion joint even
Connect outer diameter tube to match.
The leakage sealed fixture of telescope jiont for pipe the most according to claim 1, it is characterised in that described semi-cylindrical shaped portion A
Sealed groove it is provided with vertically on the interface of radially opposite sides, equal in the inner circumferential of described fixing end-plate and described sliding end shrouding
It is provided with the annular seal grooves connected with described sealed groove, described sealed groove and described annular seal grooves and is embedded in sealing
Agent.
The leakage sealed fixture of telescope jiont for pipe the most according to claim 1, it is characterised in that described semi-cylindrical shaped portion A,
Barrel between described sliding end shrouding and described packing gland has radially injecting hole.
The leakage sealed fixture of telescope jiont for pipe the most according to claim 1, it is characterised in that in described semi-cylindrical shaped portion
The radially opposite sides of A are provided with fixture otic placode, and described fixture otic placode is provided with fixture otic placode docking fastening bolt holes.
The leakage sealed fixture of telescope jiont for pipe the most according to claim 1, it is characterised in that each described stuffing-box pressure
Lid includes that semi-cylindrical shaped portion B, one end of described semi-cylindrical shaped portion B are provided with the shaft shoulder, and described shaft shoulder end face is provided with fastening bolt holes, logical
Cross bolt pass through described fastening bolt holes and be screwed into described semi-cylindrical shaped portion A cylinder end face on be provided with vertically end face fastening spiral shell
In keyhole, make the cylinder end face secure fit of described shaft shoulder end face and described semi-cylindrical shaped portion A, described gland semi-cylindrical shaped portion B's
The other end embeds in described semi-cylindrical shaped portion A.
The leakage sealed fixture of telescope jiont for pipe the most according to claim 5, it is characterised in that in described semi-cylindrical shaped portion
The radially opposite sides of B are provided with gland otic placode, and described gland otic placode is provided with gland otic placode docking fastening bolt holes.
7. a using method for the leakage sealed fixture of telescope jiont for pipe as described in claim 1 to 6 is arbitrary, including as follows
Step:
Step one: by the described chuck body of a pair described fixing end-plate the most affixed, be sleeved in the expansion joint of leakage, make
Described chuck body moves axially and covers leakage point, the inner side end of described fixing end-plate and the expansion joint end of leakage
Leave the gap of flexible allowance；
Step 2: in sliding end shrouding is placed in described chuck body described in a pair, and make the inner circumferential of described sliding end shrouding put
Outside the weld seam that expansion joint is connected with pipeline, fastening makes the interface of described chuck body fit tightly；
Step 3: sealant is filled the ring surrounded to described sliding end shrouding, the inwall of described chuck body and pipeline outer wall
In shape packing cavity；
Step 4: packing gland docking described in a pair being sleeved on pipeline, fastening makes the interface of described packing gland
Fit tightly, then bolt is passed through described fastening bolt holes being screwed on the cylinder end face of described semi-cylindrical shaped portion A be provided with vertically
End face fastening bolt holes in, and through fastening after be compacted filler so that it is reach operating unit sealing load.
The using method of the leakage sealed fixture of telescope jiont for pipe the most according to claim 7, it is characterised in that described step
In rapid three, first sealant is strengthened drawing-off, is twisted into bar shaped and embeds described ring packing intracavity again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697690.XA CN106090529B (en) | 2016-08-18 | 2016-08-18 | A kind of leakage sealed fixture of telescope jiont for pipe and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610697690.XA CN106090529B (en) | 2016-08-18 | 2016-08-18 | A kind of leakage sealed fixture of telescope jiont for pipe and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106090529A true CN106090529A (en) | 2016-11-09 |
| CN106090529B CN106090529B (en) | 2018-05-08 |
Family
ID=58069998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610697690.XA Active CN106090529B (en) | 2016-08-18 | 2016-08-18 | A kind of leakage sealed fixture of telescope jiont for pipe and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106090529B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962849A (en) * | 2022-07-13 | 2022-08-30 | 东营市硕森新材料有限责任公司 | Quick mending-leakage device for petroleum pipeline |
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|---|---|---|---|---|
| CA2192620A1 (en) * | 1996-12-11 | 1998-06-11 | Gerald Henderson | Pipe repair assembly |
| CN200949730Y (en) * | 2006-02-15 | 2007-09-19 | 北京华油天然气有限责任公司 | Clamp for restoring pipeline with epoxide resin injection method |
| CN103090153A (en) * | 2011-10-28 | 2013-05-08 | 张旭久 | Compensative pipeline repair device |
| CN205026308U (en) * | 2015-09-18 | 2016-02-10 | 四川德源石油天然气工程有限公司 | Be applied to fixture structure of pipeline leaking stoppage |
| CN105650403A (en) * | 2016-04-01 | 2016-06-08 | 西南石油大学 | Pipeline plugging device |
| CN105673992A (en) * | 2016-04-01 | 2016-06-15 | 西南石油大学 | Pipeline leakage-stopping device containing axial packing seal |
-
2016
- 2016-08-18 CN CN201610697690.XA patent/CN106090529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2192620A1 (en) * | 1996-12-11 | 1998-06-11 | Gerald Henderson | Pipe repair assembly |
| CN200949730Y (en) * | 2006-02-15 | 2007-09-19 | 北京华油天然气有限责任公司 | Clamp for restoring pipeline with epoxide resin injection method |
| CN103090153A (en) * | 2011-10-28 | 2013-05-08 | 张旭久 | Compensative pipeline repair device |
| CN205026308U (en) * | 2015-09-18 | 2016-02-10 | 四川德源石油天然气工程有限公司 | Be applied to fixture structure of pipeline leaking stoppage |
| CN105650403A (en) * | 2016-04-01 | 2016-06-08 | 西南石油大学 | Pipeline plugging device |
| CN105673992A (en) * | 2016-04-01 | 2016-06-15 | 西南石油大学 | Pipeline leakage-stopping device containing axial packing seal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962849A (en) * | 2022-07-13 | 2022-08-30 | 东营市硕森新材料有限责任公司 | Quick mending-leakage device for petroleum pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106090529B (en) | 2018-05-08 |
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